Abstract:The Shou'an Palace is located on the Outer West Road of the Forbidden City. In 1925, after the establishment of the Palace Museum,this is designated as the office of the Palace Museum Library. The buildings here were originally built in the Ming Dynasty, and gradually became the scale of today after being added during the Qing Dynasty. According to the archives, we can find out the main buildings and patterns on the ground of this palace in different periods.